King's Gambit Declined - Falkbeer - Rubinstein variation
1. e4 e5 2. f4 d5 3. exd5 e4 4. Nc3 Nf6 5. Qe2
White advances the king's pawn to e4. Black pushes the king's pawn to e5. White moves the f-pawn to f4.
Black moves the queen's pawn to d5. White captures on d5 with the king's pawn. Black plays the king's pawn to e4.
White develops the knight to c3. Black develops the knight to f6. White deploys the queen to e2.